Never give up Bro.....call till your blue in the face....remember the smaller flocks will respond better....the bigger flocks will take your breath away....but pour it on at the smaller flocks...!!!!!and most imporant....remember Snows or canada's don't make a perfect call..so messing up with a flock of snows on top of you won't matter....just go for it!!!!!!!OH....and don't hesitate when the set their wings...!!!!!!!TAKE"EM!!!!!!!!!!!!!! :salude: